Adenosine Kinase Inhibitors. 3. Synthesis, SAR, and Antiinflammatory Activity of a Series of l-Lyxofuranosyl Nucleosides
摘要:
Chronic inflammatory diseases, such as arthritis and rheumatoid arthritis, remain major health problems worldwide. We previously demonstrated that adenosine kinase inhibitors (AKIs) exhibit antiinflammatory effects by inhibiting TNF-alpha production, neutrophil accumulation, and edema formation. Although adenosine receptor agonists produce similar effects, AKIs showed the antiinflammatory activity without the cardiovascular side effects that prevented the development of adenosine receptor specific agonists. However, previously described potent AKIs, such as 5-iodotubercidin, are nucleosides which have the potential to undergo in vivo 5'-O-phosphorylation and therefore produce cytotoxicity. In an effort to eliminate toxicities produced by phosphorylated nucleosides, L-lyxofuranosyl analogues of tubercidin were tested as potential AKIs since the opposite stereochemical. orientation of the CH2OH was expected to eliminate intracellular phosphorylation. Described herein are the discovery of a new series of AKIs based on alpha-L-lyxofuranosyl. nucleosides, their SAR, as well as the antiinflammatory activity of the lead compound GP790 (IC50 = 0.47 nM, 47% inhibition of paw swelling at 10 mg/kg in rat carrageenan paw edema model). In addition, a study showing that in the skin lesion model the antiinflammatory activity is reversed by an A2 selective adenosine receptor antagonist 3,7-dimethyl-1-propylxanthine (DMPX) is also described.
Adenosine Kinase Inhibitors. 3. Synthesis, SAR, and Antiinflammatory Activity of a Series of l-Lyxofuranosyl Nucleosides
摘要:
Chronic inflammatory diseases, such as arthritis and rheumatoid arthritis, remain major health problems worldwide. We previously demonstrated that adenosine kinase inhibitors (AKIs) exhibit antiinflammatory effects by inhibiting TNF-alpha production, neutrophil accumulation, and edema formation. Although adenosine receptor agonists produce similar effects, AKIs showed the antiinflammatory activity without the cardiovascular side effects that prevented the development of adenosine receptor specific agonists. However, previously described potent AKIs, such as 5-iodotubercidin, are nucleosides which have the potential to undergo in vivo 5'-O-phosphorylation and therefore produce cytotoxicity. In an effort to eliminate toxicities produced by phosphorylated nucleosides, L-lyxofuranosyl analogues of tubercidin were tested as potential AKIs since the opposite stereochemical. orientation of the CH2OH was expected to eliminate intracellular phosphorylation. Described herein are the discovery of a new series of AKIs based on alpha-L-lyxofuranosyl. nucleosides, their SAR, as well as the antiinflammatory activity of the lead compound GP790 (IC50 = 0.47 nM, 47% inhibition of paw swelling at 10 mg/kg in rat carrageenan paw edema model). In addition, a study showing that in the skin lesion model the antiinflammatory activity is reversed by an A2 selective adenosine receptor antagonist 3,7-dimethyl-1-propylxanthine (DMPX) is also described.
[EN] ADENOSINE KINASE INHIBITORS COMPRISING LYXOFURANOSYL DERIVATIVES<br/>[FR] INHIBITEURS D'ADENOSINE-KINASE COMPRENANT DES DERIVES DE LYXOFURANOSYLE
申请人:GENSIA, INC.
公开号:WO1994018215A1
公开(公告)日:1994-08-18
(EN) Novel lyxose derivatives which selectively inhibit adenosine kinase and methods of preparing these compounds are provided. These compounds are useful in treating certain conditions in vivo which may be ameliorated by increased local concentrations of adenosine. The figure depicts levels of acadesine and ZMP in heart tissue after intravenous administration of compound 'A' of the instant invention.(FR) Nouveaux dérivés de lyxose inhibant sélectivement l'adénosine-kinase, et procédés de préparation de ces composés. Ceux-ci peuvent être utilisés pour le traitement in vivo de certains états pouvant être soignés par des concentrations locales accrues d'adénosine. La figure illustre les niveaux d'acadésine et de ZMP dans les tissus cardiaques après l'administration intraveineuse du composé 'A' de la présente invention.